class Sites:

    def get_mac(site_name):
        if site_name == 'Shenzhen':
            return '857b706e-67d9-49c0-b3cd-4bd1e6963c07'
        elif site_name == 'Nanjing':
            return 'c94e9196-3686-4d4c-a7de-8117f581f63e'
        elif site_name == 'Shanghai':
            return '9fc9253f-33a4-40db-8afc-825f383e54e8'
        elif site_name == 'Suzhou':
            return '0504b1cb-e368-452c-8b43-2c8be81b3d14'
